Car-truck.



No. 883,813. PATENTED OCT. 23, 1906.

Gr '1, WESTLAKE.

GAR TRUCK.

7 APPLICATION FILED mm: 29,1906.

To all whom it ntay concern.-

UNITED STATES PATENT OFFICE.

CHARLES T. WESTLAKE, OF ST. LOUIS, MISSOURI, ASSTGNOR TODOUBLEBODY'BOLSTER COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION or NEWJERSEY.

Be it known that 1, CHARLES T. WEST- LAKE, a citizen of the UnitedStates, residing at St. Louis, in the State of Missouri, have invented anew and useful Improvement in Oar-Trucks, of which the following is aspecification.

My invention relates particularly to the double spring-beam andside-bearingibridges 'improvement in car-trucks; and my invenspringplank hangers and adjacent parts,

tion has for itsobject to increase the rigidity of the spring-beams andinsure their aline- 1.

menu to each other at all times and to enable them to be loweredtogether on removal of the center'beam or bolster for repairing thewhich are inaccessible when all the parts are assembled;

The invention consists in features of novelty, as hereinafter describedand claimed,

reference being had to the accompanying drawings, forming part of thisspecification, whereon Figure 1 is a top plan of my improved combinedspring-beams and side-bearing bridges;

Fig. 2, a side elevation thereof; Fig. 3, an end view of the same; andFigs. 4 and 5, crosssections, to enlarged scale, through one of theside-bearing bridges forming part of my invention on lines 4: 4 and 55,.respectively, in Fig. 3.,

\ Like letters and numerals of reference de n'bte like parts in all thefigures;

0 represents the two s ring-beams of a see.

' wheeled car-truck, Whic are preferably composed of cast-steel,respectively integral and in the present case of an inverted-U shape incross-section,, except at their, end ortions, which are box shaped andadapted on the under .side to form the spring-seats of the truck, or thes ring-beams a may be otherwise configured Specificationlof LettersPatent.

Application filed June 29,1906. ScrialNo. 324.047.

hinge-pins of the ;or assembled position.

WhatI claim as my invention, and desire j to secure by-LettersPatent,-is

b-"s='the center beam or bolster, (indicated dotted lines,) whichspan'san'd is support CAR-TRUCK.

Patented Oet. 23, 1906.

ed on the spring-beams a. The center beam b is composed, preferabl ofcast-steel integral throughout and in t e present case is of a double Uor V shape in top plan, perforated centrally for the klng-bolt andhaving the endortions of its bifurcated members 1,

whic are preferably of an inverted-U shape I in cross-section, fixed onthe spring-beams a by bolts (or rivets) 2, which pass through lugs (orflanges) 3 formed on the base of the members 1 and through the topmembers 4 of the spring-beams a, as indicated, or the center beam 1) maybe of any other suitable cross-section and configuration in top plan forobtaining a firm bearing thereof on the spring beams a.

The spring-beams a are united to each other at or adjacent to theirends, respectively, by atie-bar c, which is integralwith thespring-beams a and in the present case of an inverted-U shape incross-section, except at its ends or junction with the spring-beams a,where it may be of a double U or H shape in cross-section, Fig. 5, orthe tie-bar 0 may beof any other suitable shape in cross-section.

Each tie-bar a between the spring-beams a is preferably arched andadapted to form the corresponding side bearing bridge of the truck, orthe tie-bar a may be independent of the side-bearing bridge, which maybe of the ordinary'construction andfixed at its ends to 'thespring-beams a in the usual or an suitable manner; but I prefer toutilize t e tiebars 0 for the purpose described- By this constructionthe spring-beams (it apart parallel and inhorizontal alinement to eachother at all times, so that on removal of the bolts 2 the spring-beamsa-can be lowered together away from the center beam 1;-

and access thereby obtained to the upper (sipring-plank hangers (notshown) or other a a'cent parts requiring repairs or adjustment whichcannot be effected while the spring-beams a are in their normal 'aregreatly strengthened and rigidly held 1. In a car-truck of the classdescribed, the co'mbinationwith the spring-beams havada ted to form aside-bearing bridge of the truc substantiall as described.

ing the center beam or bolster removably fixed thereto of a tie-baruniting wandinte v gral with the said beams, substantially as de- Intestimony w iereof I have signed my scribed. I Y I name to thisspecification in the presence of 2: In a car-truck of the classdescribed, the two subscribing witnesses.

combination with the s ring-beams having CHARLES T. WESTLAKE.

the center beam or olster removably Witnesses: fixed thereto, of atie-bar unitin and inte JESSE T.,FRIDAY, gral with the said beams, thesai bar bein I EDWAR W. FURRELL

